What Is 'Grassmilk'? Is It Better for You?

Demand is booming for organic milk from cows that eat only grass. But convincing farmers to feed cows only grass is tricky. WSJ's Sarah Nassauer reports on Lunch Break with Tanya Rivero.

This transcript has been automatically generated and may not be 100% accurate.

... I ... well ... I can you get in the case of who helped with all full level ... melt the house who are fed only grass not grain and this who were organic Malik is getting ordinary organic now Iran for its money in accounts worth of the SJ reporter Sarah Nassauer said I think so much for being with us ... so this one goes to eleven on is that the idea behind that's the AG and that's that down its grasp and so the cows eating grass in the summer in ok in the winter and a few other things ... that it is for the consumers are interested in this is that it's getting away from the feed that most of the cars you know where we get now that's the right now is that suppose to be better for you ... yet about the facts of them in US sums research has shown that this grass fed ... milk has more ... omega three is ... conventional milk on organic milk has an organic milk How started raising a little bit that this is the grace in all the time right and so who is regulating this that I mean I understand Islam and not on a over the ... mission of grass had it ... right now that the USDA has sent them like this for in other services certified us here in a program that's a totally different thing writes this um this is a totally new thing and it's still a very niche status is not taking over the world that selling the forum open up whole foods this this organic Valley coal milks the full facts ... is that I sign and NFL cracked moments ... penalties have sky here because I understand that it's a part of that right that's so yes we mean ok ... this is all about you know ... more consumers want food that it is a perceived or real health benefit often at premium prices is the last six dollars for half an hour a day and this is the one that the big seller it opened and one that's right and reasonable for its service is some difference in taste because it depends on what tells received ... so the idea that has fallen on a regular on the polar Nachmany say ... that that ... call me crazy but it's the second of the items in three different ones that ... move ... even for tiny bit pricier but that's the power of suggestion that need and enough friends is not huge it is not a scientific test match ... all the things that means there were any I decided to be really into this has happened in the food industry overall even big package from companies right now are struggling with this idea that this consumers that runs this ultrapremium level of whatever it is writes Campbell's isn't inducing organic soup for the first time ... so this is this that the consumer is now out there and companies have to fear of how pleased I have to be honest as I found this type of consumer in the sense that I always buy organic well I think it's healthier for my kid that you think it is all the better than non organic milk but I'm not quite sure autocratic consumable paid extra two bucks ... for the grass ... fed organic matter and then you know I sleep in Italy it is only